Hot air blowing on my feet


surfbp
07-30-2004, 11:59 AM
My 2000 slt Jimmy my problem is when the A/C is off and the control is in the off position with the fan setting at 1 the lowest setting and the windows open, very hot air blows in on my feet. After driving for a while wearing sandles sometimes i have to use the cruise control because the heat is so hot it just about burns you. I can't firgure it out, I might just Duct tape the vent closed its dringin me nuts. My car temp runs around 205 to 210. Any suggestions. I am sweeting to death up hear in NYC.

Thanks
-Mike

Chief40
08-03-2004, 03:34 PM
I have the exact same problem with my 2000 Sonoma----it's annoying as hell.
Someone said that it is likely a water coolant flow valve of some type that allows hot water to flow through the heater core. It must be stuck open.
I just would like to find out where that valve exisits so I can check it out.
My heat in the winter is not that hot and my A/C in the summer works OK until the car heats up---so it sounds like a likely solution--I just need to find out where that valve is.....

Chief40
08-22-2004, 11:40 AM
My 2000 slt Jimmy my problem is when the A/C is off and the control is in the off position with the fan setting at 1 the lowest setting and the windows open, very hot air blows in on my feet. After driving for a while wearing sandles sometimes i have to use the cruise control because the heat is so hot it just about burns you. I can't firgure it out, I might just Duct tape the vent closed its dringin me nuts. My car temp runs around 205 to 210. Any suggestions. I am sweeting to death up hear in NYC.

Thanks
-Mike


I was experiencing the exact same problem
I found that a connector had come off my blend vent directly behind the glove box--the connector is black with a blue, black and brown wire--this regulates your hot and cold setting---once I reconnected ,hot air was gone and air and heat worked again....
Hope this helps
Chief40

JSayre
08-22-2004, 11:08 PM
I have the same problem. I have a rag jammed in the vent.
Hey surfbp, did Chief40's fix work for you? how do you find this connector?

Chief40
08-22-2004, 11:36 PM
I have the same problem. I have a rag jammed in the vent.
Hey surfbp, did Chief40's fix work for you? how do you find this connector?

jsayre---My friend told me to look for a vacuum hose that was either disconnected or with a hole between the temp controls and the vac controlled dampers behind the glove box. Once I realized the control that wasn't working was electrical and not pneumatic I just started checking connecters and wires.
Access to behind glove box is easy--upper left corner of open glove box is a spring loaded release--depressing that latch lowers the glove box to access the area where the dampers are. If you need any more info--email me and I'll see if I can take a picture of where the connector is located.

CJ1389
09-08-2004, 12:58 PM
I'm having that same problem, I checked the hoses both behind the glove box as well as on the back side of the controls, and still have hot air coming out. Any other suggestions?

wilfie27
09-08-2004, 04:31 PM
Check the "vacum ball" hanging on the underside of the hood. There should be a vacum line running into it, if not connect it. My nipple was broken off so I just jammed a golf tee into the hose and now my vent controls work.

vcdb
10-13-2004, 11:08 AM
I had the same issue when the AC coolant drops to low that is the default mode, added more refrigerant problem corrected

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